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Before all, this fixes the problem with double-initialising of type ids;
it could have been fixed with a smaller change but EventTypeRegistry
is fairly superfluous now when inline variables are a thing and it's
possible to have an extensible registry system using literally pointers
to the memory that are guaranteed to be unique. That being said,
event_type_t is still QLatin1String and not a bare const char* (or
void*), mostly to stay on the safe side when it comes to type
identities: unlike const char*, QLatin1String's are deep-compared,
meaning that matching for switchOnType (former visit) occurs a bit
slower now. This may change in the future; but this is the first step
in getting rid of EventTypeRegistry.
This change means that initializeTypeId is no more needed; also, two
static member functions, typeId() and matrixTypeId(), are being replaced
with a single inline static member variable, TypeId. This commit doesn't
apply that transition across the event types, meaning that you'll get
a pile of warnings when compiling the library. These warnings will be
tackled in further commits within this branch.
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Strictly speaking, EventFactory can be further instantiated if any
client application figures they need a whole new base class for events
and respectively a separate EventFactory specialisation for it.
Where this whole commit started though was a linkage error because I
did not plan to expose Quotient-specific logging categories for linkage
(effectively, usage) from the client code - meanwhile the inline code
of EventFactory uses qDebug(EVENTS), meaning I had to either add
QUOTIENT_API to EVENTS or hide those invocations. This in turn led
to trimming the EventFactory constructor back to trivial implementation
and dropping the guard variable that was supposed to trace duplicate
EventFactory<BaseEventT> objects for the same BaseEventT - with the
reasoning that such situation is not really dangerous (unlike
EventTypeRegistry double-initialisation fiasco, see #413), and at the
same time it can be easily detected in the logs by duplicated factory
method registration messages. And while I was at it, I replaced the
meaningless bool in the return type of EventFactory<>::addMethod with
the slightly more (but still barely) useful reference to the inserted
factory method. One can (in theory) use it now if they need to turn
some event JSON into an object of some specific event type or nullptr
if the event type in the JSON payload doesn't match - but at the same
rate (for now at least) one can call makeIfMatches<EventT>() directly.
With this commit, both Quotest and Quaternion build and link using
either Clang or GCC even under -fvisibility=hidden. However, running
quotest now reproduces #413, which is a matter of event typeId
infrastructure refactoring, coming in further commits.
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This include all (hopefully) classes/structures and functions that have
non-inline definitions, as well as namespaces with Q_NAMESPACE since
those have non-inline (as of Qt 5.15) QMetaObject - for that a new
macro, QUO_NAMESPACE, has been devised to accommodate the lack of
Q_NAMESPACE_EXPORT in Qt before 5.14.
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Instead of using CMake's generate_export_header macro, it's a bit easier
to maintain a static file (that is not supposed to ever change) with
necessary export/import/hidden visibility macros.
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Fixes a clang-tidy warning.
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At some point macros were prepended with QTNT (pronounced "cute-n't",
"Quotient" with vowels dropped) but that didn't go very far. Having
forgotten about this, I introduced QUO prefix in a few places. Being
initial letters of "Quotient", QUO feels more understandable (and
coincidentally is a well-known Latin word); so let's unify on this.
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Because that's what it really is.
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This is a leftover from deferred `name` initialisation that wasn't
needed in the end.
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Fixes a clang-tidy warning.
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There's no need to return lambdas where pointers to specialised function
templates would work just fine.
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Co-authored-by: Alexey Rusakov <Kitsune-Ral@users.sf.net>
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Co-authored-by: Alexey Rusakov <Kitsune-Ral@users.sf.net>
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Co-authored-by: Alexey Rusakov <Kitsune-Ral@users.sf.net>
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It causes the program to crash for some reason
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Co-authored-by: Alexey Rusakov <Kitsune-Ral@users.sf.net>
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Co-authored-by: Alexey Rusakov <Kitsune-Ral@users.sf.net>
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The former code assumed that EventFactory<> is just a class-level shell
for a bunch of functions and a static data member that only exists to
allow specialisations to occur for the whole group together. On top of
that, setupFactory() and registerEventType() strived to protect this
group from double registration coming from static variables in an
anonymous namespace produced by REGISTER_EVENT_TYPE.
The whole thing is now de-static-ed: resolving the factory now relies
on class-static Event/RoomEvent/StateEventBase::factory variables
instead of factory_t type aliases; and REGISTER_EVENT_TYPE produces
non-static inline variables instead, obviating the need of
registerEventType/setupFactory kludge.
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Objects derived from Event are not room events (in the spec sense) and
never occur in the same arrays as room events; therefore this chaining
has always been superfluous.
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Also: extended quotest to cover member renames, not just user profile renames.
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Co-authored-by: Alexey Rusakov <Kitsune-Ral@users.sf.net>
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Co-authored-by: Alexey Rusakov <Kitsune-Ral@users.sf.net>
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Co-authored-by: Alexey Rusakov <Kitsune-Ral@users.sf.net>
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messages
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